diff --git a/misoclib/mem/litesata/test/Makefile b/misoclib/mem/litesata/test/Makefile
index 6b2723bf0..067511bb6 100644
--- a/misoclib/mem/litesata/test/Makefile
+++ b/misoclib/mem/litesata/test/Makefile
@@ -1,7 +1,7 @@
-MSCDIR = ../../
+MSCDIR = ../../../../
 PYTHON = python3
 
-CMD = PYTHONPATH=$(MSCDIR) $(PYTHON)
+CMD = PYTHONPATH=$(PYTHONPATH):$(MSCDIR) $(PYTHON)
 
 CC=gcc
 CFLAGS =-Wall -O0